Troubleshooting
Long-stamened Sage problems — and how to fix them
Long-stamened Sage (Salvia exserta) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Frost damage
Even a light frost blackens the stems and foliage. Bring containers under cover before the first autumn frost, or take softwood cuttings in late summer as insurance.
Spider mites under glass
Dry, warm greenhouse or indoor conditions encourage spider mite infestations, visible as fine webbing and stippled leaves. Increase humidity around the plant, mist regularly, and treat with insecticidal soap if needed.
Prevent long-stamened sage problems before they start
Most long-stamened sage issues are care-mismatch, not bad luck. Dial in the basics:
Long-stamened Sage problems — FAQ
Why is my long-stamened sage frost damage?
Even a light frost blackens the stems and foliage. Bring containers under cover before the first autumn frost, or take softwood cuttings in late summer as insurance.
Why is my long-stamened sage spider mites under glass?
Dry, warm greenhouse or indoor conditions encourage spider mite infestations, visible as fine webbing and stippled leaves. Increase humidity around the plant, mist regularly, and treat with insecticidal soap if needed.